Almost every sports nickname sucks these days. This has been true for at least the last 10-15 years, since thinking up a nickname for everyone (or for yourself) became a thing -- probably not unrelated to the explosion in television and internet coverage of everything sports-related and the corresponding explosion of commentators desperate to say something memorable or unique.
"Dr. J" , for example, was a cool nickname because it wasn't the result of someone trying to...

I kind of like the Abraham character, as long as they keep him cartoony and one-dimensional as he's meant to be. His breakdown after it was revealed that Eugene was a liar was painful to watch, as were his recent "moody" scenes. But when he's blowing shit up and gleefully whacking zombies he's OK.You're definitely right about the priest (Gabriel, I think) and Eugene the mullet guy.